The tufte sample text (provided by ConTeXt) contains a || sequence which normally gets turned
into an emdash. For some reason the inclusion of fontspec disables this.
I've tried to use various options ...

I am trying to create a Lua script that lets me replace all instances of -> inside my equations with \rightarrow. I found this answer that suggests a hack involving a process_input_buffer callback:
...

If I want to make my own ligature, even if it's strange, for example for "rb" with a curl similar to those in "ct" or "st", or even mor strange such as a ligature for "or", using instead of the "o" ...

I just notice that ligatures are not working on my system. For example:
\documentclass{article}
\renewcommand{\rmdefault}{ptm}
\begin{document}
data-flow missing ligature.
\end{document}
The "flow" ...

If I understand correctly from the answers to this question, the default OT1 encoding will not get me enough "font space" for the proper \l character. On the other hand, I can't seem to get ligatures ...

I have an encoding file with some tex encoding, I have to use the ligature and kerning instruction for the encoding to make a replacement two char into a single ligature. It looks like the following:
...

Since I'm working with the fontspec package, using the Segoe UI font
(actually, let me include a secondary question here: which font would you prefer for a scientifical paper on influenza, keeping in ...

I was looking at Problem with hyphen in URL when using fancyvrb with hyperref but cannot quite understand the solution so cannot apply it to my problem.
I am getting an unwanted ligature in verbatim ...

Is there a way to selectively disable a specific ligature in XeLaTex? I cannot see how. The selnolig package seems to do what I need but I don't even know how to use Lualatex with my Texshop setup on ...

I want to use a gothic font for some headings, but the 's' character looks more like a 'f' which makes it really hard to read at times. I know it's meant to look like that, but according to the Font ...

I'm writing a documentation for a command line tool.
I typeset command line options with \texttt (eg. \texttt{--help}) because \verb doesn't work in footnote.
This works fine with OT1 font encoding.
...

I've redefined my section headings to be \Huge but I don't like the ff and fi ligatures at this size, how can I disable ligatures for sections or above a certain pt size?
I'm using pdflatex with the ...

This posting is a follow-up to the postings Can't generate ligatures with LuaLaTeX under TeXLive 2014 when using certain fonts and LuaLaTeX, fontspec, .ttc fonts and kerning (Optima on Mac OS). I have ...

Ligatures set by Latex are often wrong in German (i.e. between combined
words like "Auflaufform"). To set these words correct I often use rmligs
which is a great tool to disable ligatures when the use ...

I am trying to reproduce a term from an old Siṇhala-English dictionary. I have checked several fonts and the best candidates for the job seemed coming from the Bhashitha font family. The font contains ...

Automatic handling of ligatures in TeX seems notoriously difficult but I was wondering whether in a font that has an ff and an fl ligature but no ffl one, it was possible to suppress the usage of any ...